Cristiane Angélica Ottoni1,2, Marta F Simões3, Jonas G Santos4, Luciana Peixoto5, Cleiton R Martins6, Bruno P Silva6, Almir O Neto7, António G Brito8, Alfredo E Maiorano4. 1. São Paulo State University (UNESP), Bioscience Institute, São Vicente, SP, 11380-972, Brazil. cristiane.ottoni@unesp.br. 2. Laboratório de Biotecnologia Industrial, Instituto de Pesquisas Tecnológicas do Estado de São Paulo, São Paulo, SP, 05508-901, Brazil. cristiane.ottoni@unesp.br. 3. Biology Department, Edge Hill University, St Helens Road, Lancashire, Ormskirk, L39 4QP, UK. 4. Laboratório de Biotecnologia Industrial, Instituto de Pesquisas Tecnológicas do Estado de São Paulo, São Paulo, SP, 05508-901, Brazil. 5. Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057, Braga, Portugal. 6. São Paulo State University (UNESP), Bioscience Institute, São Vicente, SP, 11380-972, Brazil. 7. Centro de Célula a Combustível e Hidrogênio, Instituto de Pesquisas Energéticas e Nucleares, São Paulo, SP, 05508-000, Brazil. 8. Department of Biosystems Sciences and Engineering, Institute of Agronomy, University of Lisbon, Tapada da Ajuda, 1349-017, Lisbon, Portugal.
Abstract
OBJECTIVE: Our study evaluated the performance of different two-chambered microbial fuel cell (MFC) prototypes, operated with variable distance between electrodes and Nafion membrane and specific inoculum concentration, applied for vinasse treatment. RESULTS: The performance of the developed MFC resulted in a maximum current density of 1200 mA m-2 and power density of 800 mW m-2 in a period of 61 days. MFC performed a chemical oxygen demand removal at a rate ranging from 51 to 60%. CONCLUSIONS: Taking our preliminary results into consideration, we concluded that the MFC technology presents itself as highly promising for the treatment of vinasse.
OBJECTIVE: Our study evaluated the performance of different two-chambered microbial fuel cell (MFC) prototypes, operated with variable distance between electrodes and Nafion membrane and specific inoculum concentration, applied for vinasse treatment. RESULTS: The performance of the developed MFC resulted in a maximum current density of 1200 mA m-2 and power density of 800 mW m-2 in a period of 61 days. MFC performed a chemical oxygen demand removal at a rate ranging from 51 to 60%. CONCLUSIONS: Taking our preliminary results into consideration, we concluded that the MFC technology presents itself as highly promising for the treatment of vinasse.
Entities:
Keywords:
Bioelectricity; Chemical oxygen demand; Microbial fuel cell; Vinasse